That eruption resulted in … St. Helens. The shallow, bowl-shaped depressions formed when an underground magma chamber erupted at Yellowstone. The largest of these flows formed the Pitchstone Plateau in southwestern Yellowstone National Park. The most recent volcanic activity at Yellowstone consisted of rhyolitic lava flows that erupted approximately 70,000 years ago. Reddit user oct29th1929 made the claim, saying that the amount of times Yellowstone is in the news, coupled with seismic activity in the Wyoming national park, … Each time, so much material spewed out that the ground collapsed downward, creating a … The most recent supervolcano eruption was 2,500 times larger than the May 18, 1980 eruption of Washington’s Mt. Probably a decade or so of global cooling due to the amount of Sulphur Dioxide pushed into the atmosphere, which will create all sorts of fuckery with weather patterns. Climate Change Potential as a Result of a Large Eruption of Yellowstone If another catastrophic caldera-forming Yellowstone eruption were to occur, it quite likely would alter global weather patterns and have enormous effects on human activity, especially agricultural production, for one-to-two decades. Even so, the math doesn’t work out for the volcano to be “overdue” for an eruption. This mainly involves lots of steam, and some hurling rocks. Yellowstone is not overdue for an eruption . Although something like this would be bad, it wouldn’t be nearly as scary as what we’re getting here. Yellowstone supervolcano is fascinatingly massive, with a two-step magma chamber system that in total contains about 58,667 cubic kilometers (14,075 cubic … Massive disruptions to an already disrupted farming season across the midwest. A more likely explosion at Yellowstone would be a hydrothermal eruption. An eruption of the Yellowstone Supervolcano is a major event and a vast amount of people in North America are likely to die. The most likely eruption scenario in Yellowstone is a smaller event that produced lava flows similar to what happened at Iceland’s Bárðarbunga and possible a typical volcanic explosion. In terms of large explosions, Yellowstone has experienced three at 2.08, 1.3, and 0.631 million years ago. Surviving such an extreme event calls for extreme steps — such as journeying by foot, horse, or boat to lands in the Southern Hemisphere which scientists say will be least effected by an eruption of this magnitude. This would likely be precipitated by a swarm of earthquakes in a specific region of the park as the magma made its way to the surface. An eruption like this at Yellowstone would be known as a supervolcanic eruption. Volcanoes do not work in predictable ways and their eruptions do not follow predictable schedules. The staff at Yellowstone Volcano Observatory are paying strict attention, and will be able to give you plenty of advance notice when the magma chamber fills to super eruption capacity.

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